.unfold-btn {
    position: absolute;
    top: 70px;
    left: 10px;
    width: 32px;
    height: 32px;
    opacity: 1;
    cursor: pointer;
    background: {
        image: url("../images//structure/modelTreeBtn.svg");
        size: 100% 100%;
        position: center;
    }

    ;
}

.unfold-btn:hover {
    transform: rotate(-30deg);
    transition: all 0.5s ease;
}

.viewer-structure {
    display: none;
    height: 80%;
    // width: 18%;
    // left: 50px;

    position: absolute;
    // top: 60px;

    overflow: hidden;
    border-radius: 6px;

    top: 50%;
    translate: 0 -50%;

    // transition: all 0.5s ease;

    p,
    div {
        color: #fff;
        font-size: 16px;
        letter-spacing: 2px;
    }

    .title {
        background: rgba(0, 0, 0, 0.8);
        padding: 0px 20px;
        height: 50px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        p {
            margin: 0px;
            float: left;
        }
    }

    .close-btn {
        width: 20px;
        height: 20px;
        background-image: url('../images/structure/closeBtn.svg');
        background-repeat: no-repeat;
        background-position: center center;
        background-size: 80%;
        cursor: pointer;
    }

    .close-btn:hover {
        transform: rotate(90deg);
        transition: all 0.5s ease;
    }

    .tree-container {
        overflow-y: scroll;
        width: 100%;
        height: 68%;
        background-color: rgba($color: #363636, $alpha: 0.9);
        display: flex;
        flex-direction: column;

        // padding: 10px 0px 10px 20px;
        .tree-node {
            // text-align: center;
            border-bottom: 1px solid rgba($color: #000, $alpha: 0.2);
            cursor: pointer;

            &:hover {
                background-color: rgba($color: #000, $alpha: 0.2);
                color: #fff;
            }

            .node-content {

                -moz-user-select: none;
                -khtml-user-select: none;
                user-select: none;
                // font-style: italic;
                width: 80%;
                margin-left: 30px;

                white-space: nowrap;
                overflow: hidden;
                text-overflow: ellipsis;

                &:hover {
                    overflow: visible;
                    text-overflow: clip;
                }

                .expanded-btn {
                    display: inline-block;
                    width: 0;
                    height: 0;
                    border-style: solid;
                    border-width: 5px 0 5px 6px;
                    border-color: transparent transparent transparent #fff;

                    // margin-right: 10px;
                    &.active {
                        border-width: 6px 5px 0 5px;
                        border-color: #fff transparent;
                    }
                }

                span {
                    line-height: 40px;
                }

                input {
                    // margin-right: 10px;
                    pointer-events: fill;
                }
            }
        }
    }
}